Wanning city lies in the Southeast coast of Hainan Island, with East close to the South China Sea, West adjoins the central Hainan, South near the Lingshui, and North bounds on the Qionghai. Wanning city is 112 kilometers away from the Sanya city from South side and 139 km away from Haikou city in north side. It is in the center of East Expressway Line. Wanning city domains a total area of 4443.6 square kilometers, includes 1883.5 square kilometres’ land and 2,550 square kilometers’ sea area. In the land area, mountainous region accounts for about one half, the hills and Plains accounts for one-fourth respectively. It has a population of 554,500, with 476,100 Han ethnic group and 18 minorities, 78,400 people, such as Li and Miao; during its administrative area, there are 12 towns, 3 state-run farms, 1 overseas Chinese farm and 1 State-run forest farm. The People's Government of Wanning city stations in Wancheng Town. Wanning city has a tropical monsoon climate, mainly characterized by: first, a moderate climate, small temperature differences and high temperature. Its annual average temperature is 24℃, the coldest month mean temperature is 18.7℃, the hottest month mean is 28.5℃; without frost for whole year, with pleasant climate; second, abundant rainfall, average annual rainfall reaches 2,400 mm around; third, long sunshine hours, the annual average sunshine hours is more than 1800 h.